Attempt to migrate to Java 19.

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [ 17 ]
+        java: [ 19 ]
     steps:
       - uses: actions/checkout@v3
 
@@ -20,7 +20,6 @@ jobs:
         with:
           java-version: ${{ matrix.java }}
           distribution: temurin
-          check-latest: true
           cache: "gradle"
       - name: Run Build
         run: ./gradlew build

.github/workflows/docker-build-test.yml

@@ -21,17 +21,17 @@ jobs:
         dockerfile:
           - Dockerfile.ci
           - Dockerfile.openj9.ci
-          - Dockerfile.graalvm-jvm.ci
+          # - Dockerfile.graalvm-jvm.ci
+      fail-fast: false
     steps:
       - uses: actions/checkout@v3
       - name: Create Version File
         run: echo $(git log -1 --date=short --pretty=format:%cd)-$(git rev-parse --short HEAD) > VERSION
-      - name: set up JDK 17
+      - name: set up JDK 19
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 19
           distribution: temurin
-          check-latest: true
           cache: "gradle"
       - name: Run Build
         run: ./gradlew shadowJar

.github/workflows/docker-build.yml

@@ -23,12 +23,11 @@ jobs:
       - uses: actions/checkout@v3
       - name: Create Version File
         run: echo $(git log -1 --date=short --pretty=format:%cd)-$(git rev-parse --short HEAD) > VERSION
-      - name: set up JDK 17
+      - name: set up JDK 19
         uses: actions/setup-java@v3
         with:
-          java-version: 17
+          java-version: 19
           distribution: temurin
-          check-latest: true
           cache: "gradle"
       - name: Run Build
         run: ./gradlew shadowJar

Dockerfile

@@ -1,4 +1,4 @@
-FROM eclipse-temurin:17-jdk AS build
+FROM eclipse-temurin:19-jdk AS build
 
 WORKDIR /app/
 
@@ -7,7 +7,7 @@ COPY . /app/
 RUN --mount=type=cache,target=/root/.gradle/caches/ \
  ./gradlew shadowJar
 
-FROM eclipse-temurin:17-jre
+FROM eclipse-temurin:19-jre
 
 WORKDIR /app/
 
@@ -17,4 +17,4 @@ COPY VERSION .
 
 EXPOSE 8080
 
-CMD java -jar /app/piped.jar
+CMD ["java", "--enable-preview", "-jar", "/app/piped.jar"]

Dockerfile.ci

@@ -1,4 +1,4 @@
-FROM eclipse-temurin:17-jre
+FROM eclipse-temurin:19-jre
 
 WORKDIR /app/
 
@@ -8,4 +8,4 @@ COPY VERSION .
 
 EXPOSE 8080
 
-CMD java -jar /app/piped.jar
+CMD ["java", "--enable-preview", "-jar", "/app/piped.jar"]

Dockerfile.openj9

@@ -1,4 +1,4 @@
-FROM ibm-semeru-runtimes:open-17-jdk AS build
+FROM 1337kavin/openj9-19 AS build
 
 WORKDIR /app/
 
@@ -7,7 +7,7 @@ COPY . /app/
 RUN --mount=type=cache,target=/root/.gradle/caches/ \
  ./gradlew shadowJar
 
-FROM ibm-semeru-runtimes:open-17-jre
+FROM 1337kavin/openj9-19:latest-jre
 
 WORKDIR /app/
 
@@ -17,4 +17,4 @@ COPY VERSION .
 
 EXPOSE 8080
 
-CMD java -server -Xmx1G -Xaggressive -XX:+UnlockExperimentalVMOptions -XX:+OptimizeStringConcat -XX:+UseStringDeduplication -XX:+UseCompressedOops -XX:+UseNUMA -XX:+IdleTuningGcOnIdle -Xgcpolicy:gencon -Xshareclasses:allowClasspaths -Xtune:virtualized -jar /app/piped.jar
+CMD java -server -Xmx1G -Xaggressive -XX:+UnlockExperimentalVMOptions -XX:+OptimizeStringConcat -XX:+UseStringDeduplication -XX:+UseCompressedOops -XX:+UseNUMA -XX:+IdleTuningGcOnIdle -Xgcpolicy:gencon -Xshareclasses:allowClasspaths -Xtune:virtualized --enable-preview -jar /app/piped.jar

Dockerfile.openj9.ci

@@ -1,4 +1,4 @@
-FROM ibm-semeru-runtimes:open-17-jre
+FROM 1337kavin/openj9-19:latest-jre
 
 WORKDIR /app/
 
@@ -8,4 +8,4 @@ COPY VERSION .
 
 EXPOSE 8080
 
-CMD java -server -Xmx1G -Xaggressive -XX:+UnlockExperimentalVMOptions -XX:+OptimizeStringConcat -XX:+UseStringDeduplication -XX:+UseCompressedOops -XX:+UseNUMA -XX:+IdleTuningGcOnIdle -Xgcpolicy:gencon -Xshareclasses:allowClasspaths -Xtune:virtualized -jar /app/piped.jar
+CMD java -server -Xmx1G -Xaggressive -XX:+UnlockExperimentalVMOptions -XX:+OptimizeStringConcat -XX:+UseStringDeduplication -XX:+UseCompressedOops -XX:+UseNUMA -XX:+IdleTuningGcOnIdle -Xgcpolicy:gencon -Xshareclasses:allowClasspaths -Xtune:virtualized --enable-preview -jar /app/piped.jar

build.gradle

@@ -56,7 +56,11 @@ jar {
     }
 }
 
+tasks.withType(JavaCompile).each {
+    it.options.compilerArgs.add('--enable-preview')
+}
+
 group = 'me.kavin.piped'
 version = '1.0'
-sourceCompatibility = JavaVersion.VERSION_17
+sourceCompatibility = JavaVersion.VERSION_19
-targetCompatibility = JavaVersion.VERSION_17
+targetCompatibility = JavaVersion.VERSION_19

src/main/java/me/kavin/piped/utils/Multithreading.java

@@ -7,7 +7,7 @@ import java.util.function.Supplier;
 
 public class Multithreading {
 
-    private static final ExecutorService es = Executors.newCachedThreadPool();
+    private static final ExecutorService es = Executors.newVirtualThreadPerTaskExecutor();
     private static final ExecutorService esLimited = Executors
             .newFixedThreadPool(Runtime.getRuntime().availableProcessors() * 8);
     private static final ExecutorService esLimitedPubSub = Executors

testing/docker-compose.yugabytedb.yml

@@ -8,7 +8,7 @@ services:
       - ./config.yugabytedb.properties:/app/config.properties
     depends_on:
       - yb-tserver
-        command: [ "sh", "-c", "sleep 10 && java -jar piped.jar" ]
+    command: [ "sh", "-c", "sleep 10 && java --enable-preview -jar piped.jar" ]
   yb-master:
     image: yugabytedb/yugabyte:latest
     command: